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Quality of service provisioning in 802.11e networks: challenges, approaches, and future directions

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3 Author(s)
N. Ramos ; California Univ., San Diego, La Jolla, CA, USA ; D. Panigrahi ; S. Dey

In order to support diverse application requirements, a new standard called IEEE 802.11e is being proposed to improve quality of service in wireless LAN networks. There are, however, a few remaining challenges that need to be addressed in order to enable comprehensive QoS support using 802.11e. In this article we provide an overview of a few of these challenges, describe their possible impact on QoS, and provide a survey of techniques that potentially could be used to address the identified challenges. Specifically, we focus on three challenges: handling time-varying network conditions, adapting to varying application profiles, and managing link layer resources. Additionally, we present several potential future directions toward improved QoS in wireless networks.

Published in:

IEEE Network  (Volume:19 ,  Issue: 4 )